The History of Ddt in Ontario

107^

Ministry
of the
Environment

Hon George R McCague.

about pesticides

DATE:
NUMBER:

July, 1978
10-01-02

THE HISTORY OF DDT IN ONTARIO

1969: The Province of Ontario announced the use of DDT would be

prohibited from January 1, 1970 except for a few specialized
cases. It would be available only to holders of a permit for
use on tarnished plant bugs in apples, cutworm in tobacco, and
bats. Notices were placed in newspapers throughout the province
regarding the restriction on the use of DDT and, the collection
and disposal of DDT. R.R. O. 1970, Reg. 657 s. 23(1)

1971: A trade memorandum by Agriculture Canada was circulated to the

trade including all agricultural organizations regarding changes
in the acceptable uses for DDT (See T-88, December 31, 1971) .

1972: The Province of Ontario prohibited the use of DDT for cutworm
control in tobacco after January 1, 1972.
O. Reg. 282/72, s. 2(1) 1972 c. 1 s. 71(3)

1973: The Province of Ontario prohibited the use of DDT for

tarnished plant bug control in apples after January 1, 1973.

1974;

The Province of Ontario allowed the use of DDT for mice in
addition to bats in July, 1974.

For the history of DDT in Ontario prior to 1969, see the following:
"A Report of the Use of DDT in the Province of Ontario," prepared by the
Ontario Pesticides Advisory Board, September, 1969.